diff options
Diffstat (limited to 'lib/stdlib/src/io_lib_pretty.erl')
-rw-r--r-- | lib/stdlib/src/io_lib_pretty.erl | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl index 3d5a979b3e..ba9d9e8434 100644 --- a/lib/stdlib/src/io_lib_pretty.erl +++ b/lib/stdlib/src/io_lib_pretty.erl @@ -131,6 +131,8 @@ print(Term, Col, Ll, D, M0, T, RecDefFun, Enc, Str) when is_tuple(Term); %% use Len as CHAR_MAX if M0 = -1 M = max_cs(M0, Len), if + Ll =:= 0 -> + write(If); Len < Ll - Col, Len =< M -> %% write the whole thing on a single line when there is room write(If); @@ -720,7 +722,7 @@ printable_list(L, _D, T, latin1) when T < 0 -> io_lib:printable_latin1_list(L); printable_list(L, _D, T, Enc) when T >= 0 -> case slice(L, tsub(T, 2)) of - {prefix, ""} -> + false -> false; {prefix, Prefix} when Enc =:= latin1 -> io_lib:printable_latin1_list(Prefix) andalso {true, Prefix}; @@ -736,11 +738,17 @@ printable_list(L, _D, T, _Uni) when T < 0-> io_lib:printable_list(L). slice(L, N) -> - case string:length(L) =< N of + try string:length(L) =< N of true -> all; false -> - {prefix, string:slice(L, 0, N)} + case string:slice(L, 0, N) of + "" -> + false; + Prefix -> + {prefix, Prefix} + end + catch _:_ -> false end. printable_bin0(Bin, D, T, Enc) -> |